Lamp



Patented Sept. 16,` 193() UNITED srarss rArENroFFICEf y PAUL G; PEIK, or cir-rrenero;`Iizrarors AssIGNoR or ONE-FOURTH rro SAMUEL R.

L swENsoN, oF nvANsroN., ILLINOIS' LAMP YApplication md January 10,1927. seriarno. 160,252.

My invention relates to improvementsV in lamps, and it consists in the combinations,

constructions, and arrangements hereindescribed and claimed.. l Y 5 An object of my invention 1s to provide a la-inp of theacetylene type which is especially adapted to be used by miners, but which may be used efficiently as a railroad lamp.

be used with safety in any mine, .whether gaseous or not, and which will warn the user immediately when gas develops.

A further object of my invention is to provide a device oi' the type described which has ,a uniform generation of gas by providing novel means for the uniform'flow of water to the carbide. f-

A further object of myinvention is to pro-V vide a device of the type described which encloses the flame, whereby the outside gases cannot beignited.

A further object of my invention is to provide a device of the type 'described which has a free circulation of airl for carryingoff the heat of combustion. Y

A further object of my invention is to provide a device of the type described in which the burner may be ignited without opening the llame chamber.

A further object of my invention is to provide a device of the type described which has a novel means for protecting the main body ci the lamp and the lens from the heat of the- 5 flame.

Figure 1, Y

Figure 3 is a section substantially along the line 3 3 of Figure 2, and y Figure 4 is a modilied form of the water-4 feeding mechanism.`

In carrying out my invention, I provide a Figure 2 is a section along the line 2-21ofv' body portion composed of'an outer casing 1 having a. relatively "large open end. The Ywalls of thecasing l'taper inwardly from substantially adjacent the open end to an arcuate-.shaped reflector 2. The casing 1 is p`rovided with a relatively large opening 3 which is centrally disposedy within the upper portion of the vwall thereof. A relatively largepcupA A further object of my invention is to prol vide a device `of the type described which can his disposed wit-hin the cup-shaped member L in engagement with the inner wall thereof.

`A relatively small cup-shaped member 7 having an annular flange 8is disposed within the y relatively large cup-shaped member Ll and the screen 6. The cupshaped members A and 7 areprovided with exhaust openings 9.

A conical-shaped member 10, which is of substantially the same shape as the casing 1, is disposed within the casing 1 and engages with the inner wall thereof. The conical- 'shapedmember 10 is provided with an opening 11 which is in alignment with the opening' 3. The conical-shaped member 10 is'turther provided with an inwardly extending annular ange 12, disposed concentric with the opening 11 and adapted to receive the ianges 5 and 8. oi" the cup-shaped members 4 and 7.

A cylindrical flue 18, having openings 14, one upon each side and at the rear thereof, andoutwardly extending integral'prongs 15, is centrally disposed within the cup-shaped member 7. The prongs 15 are receivable within recesses 16 in the flange 12 and are held against displacement by the flanges 5 and 8. The front portion 17 of the flue 13 vserves as a baiileplate.

The casing 1 and the conical-shaped member 10 are provided with aligned openings 18 and 19, respectively, which are disposed upon Veach side of the center line of the casing at the lower portion thereof. The'casing 1 at theopenings 18 is bent outwardly for receiving screens 20. i

AA ring 21 having an inwardly extending flange 2:2 is provided with an outer lens 23 and yan inner lens 24. Gaskets 25 are disposedl upon each side of the lenses 23 and 24.

The ring 21 is receivable upon the open end of the casing- 1 and may be locked in place by any suitable means7 not shown. The lens 23 is composed of a non-shatterable material. T he lens :2d is provided with a plurality of openings QG at the lower portion thereof and a plurality of openings 2 at the upper portion thereof.

A water tank or receptacle 2S is provided with an inlet opening 29 in the upper portion thereof. The tank 28 is provided with threads 30 adjacent the lower portion thereof. iin overflow tank 31 is rigidly mounted at upon the rear of the rei'iector 2 and is provided with threads 33 which are adapted to receive the tareads 30 of the tank 28. A tube is centrally c isposed within the overflow tank o1 and exte s downwardly therethrough. A cylinder 35 is disposed concentric with the tube 34 and is rigidly secured at its lower extremity to the bottom 36 of the overfiow tank 81, thus forming an auxiliary water tank 3:" The cylinder 35 is pr0- vit-.ed with circumferenially disposed openings 35". rl`he upper extremity of the cylinder 35 is closed when the water tank 28 is screwed in place. A. wick 37 is disposed within the tube 34, completely filling the tube. T he lower extremity 38 of the wick may extend beyond the tube for a short distance and the upper extremity 89 of the wick extends over the upper extremity of the tube and downwardly within the auxiliary tank.

.fr water check vaive l0 extends through the water tank Q8 and is adapted to engage with the valve seat 41 for governing the iiow of water from the tank 28 into the auxiliary tank 35. The valve 40 is provided with a hand. wheel l2 at its outer extremity and threads i3 which engage with threads 44 of the tank 28. A shut-off valve 45 entends through the tank 28 and is adapted to enwith the wick 3T 'for stopping the flow of water throi-gh the wick. The shut-off valve is also provided with a hand wheel i6 for adjusting the position of the shutoif valve.

A burner 47 is so positioned within the body portion that the fiame from the burner will be in central alignment with the reflector rl`he burner i7 is centrally disposed between the intake openings 18 and 19 and extends rearwardly through the reiector 2 to a position adjacent the bottom of the overfiow tank 31. A carbide receptacle 48 is removably secured to the overiow tank 31 by means of threads 49. The carbide is indicated at 50.

Special means is employed for igniting the passing from the burner. This means includes a high resistance coil 51 which is in electrical. connection with Contact points 52 of a plug 53.

From the foregoing description of the varions parts of the device, the operation there of may be readily understood. The water tank is iirst illcd with water and the water check valve ii0 adjusted to the appro"i mate position 'for permitting the desired amount of water to pass from the water tank. Before igniting Jthe from the burner, the operator makes sure that the auxiliary tank 353 has the desired aniiount of water therein.

The wicll; 3T is so constructed that it will permit only a desired amount of water7 i. e., 'the amount required by the burner to pass tneretnrough at a uniform rate and into the carbide container. As the water passes from the `wick and drops upon the carbide, a gas is formed which passes through the burner 4J?. lhis gas may be ignited by placing the contact points 52 into a female socket, whereby a source oi current will pass through the coil 51. The heat 'from the coil 51 is sui'liient to ignite the gas passing from the burner.

A direct heat from the flame of the ignited gas strikes the iue 13 at the battle plate portion 17. in this manner the heat from the dame is kept from contacting with the body portion and the lenses 23 and 2st. rlhe flue also draws the spent therethrough. The suction caused by drawing the spent gas through the liuc 13 causes air to be drawn in through the intake openings 18 and 19 around the burner and around the Hue, where thc air mixes with the spent before they pass outwardly through the screen (i. The upper ends of the flue and the cup-shaped members .7 are closed. T he upper end of the flue l?, spaced away from the upper ends of the cup-shaped members -land permitting an air space therebetween for keeping the closed ends ot the cup-shaped meinbers d and 7 relatively cool. This is to avoid the igniting of gas within the mine. A portion of the air entering the intake ports 1S and 19 passes through the openings 26 be tween the lenses E23 and in this manner the non-sha tt alivio lens is protected from the direct heat of the flame and is thus kept cool.

rl`he uniform passage of water down the wick is dependent upon maintaining a uniform level of the water in the auxiliary tank. r1`hus the cylinder 3V is disposed relatively close to the wick 37, whereby the de ,f' amount of water will be supplied to the wick, irrespective of the position at which the lamp is hele The flow of water through any mechanical valve3 such as d1, is increased through aA y shaking of the lamp which eccurs when in use. rllhis increased flow passes ofi through the openings 35, thus maintaining the uniform level of water desire l and necessary for the uniform passage of water down the wick.

The overflow tank 31 is suiiicient to receive all the excess water which might pass through 41.

Should the operator wish to shut off entirely the supply of water to the wick, the shut-ofvalve may be moved downwardly,

`thus holding the upper portion ofthe wick in close engagement with the upper eXtremity of thetube 34. Anyof the parts which may be damaged by the vHaine during long use, such as the flue 13, the cup-shaped members 4 and v7, or the screen 6, may be removed from the body portion by iirst removing the lenses 23 and 24 and the coiiical-shaped memberio.

ln Figure 4 I have shown a modified form of the water-feeding mechanism which is composed of a water tank having a tube 6l extending through the bottom thereof and a carbide container 62, which is removably secured to the water tank 60. A wick 63 eX- tends through the tube'l and over the upper edge thereof. hwater check valve 64 is movably disposed within the upper `wall of the vwater tanlr 60 and is adapted to be moved into engagement with the wick 63 for varying the-amount of water passing through the wiel; and cutting ofi theV entire passage of water through the wick if desired. A burner 55 is disposed in communication with the carbide .container 62.

l. In a device of the type described, a body portion having an air intake port and an air exhaust port, a non-shatterable outer lens, an innerV lens, means for securing said lenses to said body portion, said inner lens having openings therethrough, whereby the air from said intake port may pass vthrough the openings in said inner lens between said lenses and out through said exhaust port.

2. A device of the type described comprising a body portion, a burner for the ignition of gas disposed in said body portion, means for supplying a predetermined quantity of to said burner, a line extending through said body portion and provided with a transversely extending wall arranged to direct the` heat oit the ignited gases away from said body portion, said Hue having a closed end and Vopenings positioned substantially adjacent said closed end, a cover for said flue' disposed over said closed end and positioned away therefrom, forming an air space therebetween, said covercomposed of cup-shaped inen'ibers disposed one within another and having their side walls spaced apart and provided with aligned openings, and porous means disposed between the side walls of said cup-shaped ,members and the openings therein.

3. A device of the type described comprising a body portion composed of a casing having an opening therein, a bell-sliaped member arranged to be disposed in said casing and having an opening therein in alignment with the opening in said casing, an annular lange disposed concentric with the opening` in said bell-shaped member, a flue having projectionsarranged to be'disposed upon said `flange, and cover Vdisposed over saidflue and having anloutwardly extend-V ing flange arranged to be disposed between said annular flange and said casing adjacent the opening therein. o l

4. Adevice of Vthe type Ydescribed comprising an outerA casing having an openingtherein, an outer cup-shaped member having openinOs therein, an inner cup-shaped member having openingstherein disposed in registration with the openings in said outer cupshaped member, porous means disposed between said outer cup-shaped member and said inner cup-shaped member, and means for securing said--cup-shaped members to said outer casing. Y

,-5. A device of the type described comprising an outer casing having an opening there- Y in, an outer cup-shaped member having openings therein, anA inner cup-shaped member having openings therein disposed in registration withthe openings in said outer cupshaped member, porous means disposed be,- tween saidouter cup-shaped member and said inner cup-shaped member, means for securing said cup-shaped membersV to said outer casing, said securing' means comprising outwardly extending flanges integral ith said cup-shaped members, and an inner casing having an opening therein and a recess disposed adjacent said opening for receiving said iianges and for securing said cup-shaped kmembers to said outer casing when said inner casing is disposed within said outer casing.

6. A device of ing an outer casing having an opening therein, an outer cup-shaped member having openings therein, an inner cup-shaped member having openings ltherein disposed in registration with the openings in said outer cupshaped member, porous means disposed between said outer Vcup-shaped member and said inner cup-shaped member, means for securing said cup-shaped members to said outer casing, said securing means comprising outwardly entendingiianges'integral with said cup-shaped members, an inner casing having Van opening therein and a recess Vdisposed adjacent said opening :tor receiving said flanges and for securing said cup-shaped members to said outer casing when said inner casing is disposed within said outer casing, a flue eX- tending into and spaced away from said cupshaped members, and means for securing said iiue in place. V

PAUL G. PEIK.

the type described oompris- 

